While the old vaccine was based on whole cells, the new one is acellular, made from only part of the infectious organism.
42.
Persistent infections are characterized by the continual presence of the infectious organism, often as latent infection with occasional recurrent relapses of active infection.
43.
"I was working day and night, " looking for infectious organisms that could have caused the strange illness, Karmali recalled.
44.
Fauci added, " and that is to see if they're going to get immune reponses active against infectious organisms ."
45.
The researchers found that respiratory allergies were less frequent in the cadets who had been heavily exposed to infectious organisms transmitted through foods and water.
46.
Preuss acknowledged in a statement that, " The ability of oils from various spices to kill infectious organisms has been recognized since antiquity.
47.
When babies are challenged by infectious organisms, as most babies are in the developing world, the Th1 response is primed and predominates over Th2.
48.
After transferring the infectious organisms to the host species, the flies leave to rest and during that time transmission was successful only in some cases.
49.
Roche's diagnostic strengths include laboratory testing, including new techniques that allow much improved study of cancerous and other cells as well as infectious organisms.
50.
The finding suggests that the mistaken attack on myelin may result from an inability of some people's T cells to distinguish between myelin and infectious organisms.
